Highly Conductive Polysiloxane Elastomers with Excellent Transparency, Resilience, and Stretchability
Highly Conductive Polysiloxane Elastomers with Excellent Transparency, Resilience, and Stretchability
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DOI：
10.1021/acsami.3c09780
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Xu-Ming Xie
中科院分区：
文献类型：
--
作者：
Yi Wei;Yuxi Li;Yujun Liu;Jianhui Yan;Xu-Ming Xie
Flexible transparent conductive materials show great.potential in wearable electronics, flexible sensors, and so on. But.the most used flexible conductive materials like hydrogels and.ionogels suffer from evaporation and solvent leakage. For the.application in these fields, integrated performances of preeminent.resilience, transparency, stability, and conductivity that do not.change with deformation are prerequisites. It is still challenging to.handle the trade-off among these performances. Herein, a facile.approach is established to balance these properties into one.elastomer. Through the thiol−ene click reaction, mercaptopropylmodified.polydimethylsiloxane (mPDMS) is cross-linked and.grafted by PEG-based macromonomers to prepare conductive elastomers. By anchoring with mPDMS through carbon−sulfur.bonds, PEG can be evenly dispersed, resulting in ultratransparency (97%) and stable conductivity of as high as 1.68 × 10−2 S m−1,.comparable to pure PEG/lithium salt conductivity. It also has a wide electrochemical stability window with a high voltage of 4.8 V..Moreover, the multibond network strategy is employed through grafting ligand 1-vinylimidazole to mPDMS to construct dynamic.cross-links between Zn(II) and 1-vinylimidazol, bestowing excellent properties to the elastomers. Overall, elastomers with a wellbalanced.performance of high resilience, good conductivity, and ultratransparency are obtained, providing promising applications for.soft electronics, lithium battery electrolytes, and flexible devices.
